Edwin Chargaff was a 20th century biochemist who investigated the structure of DNA. Chargaff looked at the ratios of the four bases in the DNA. State the type of bond that joins the bases together in a DNA molecule

Answers

Answer 1

Answer:

Hydrogen Bond

Explanation:

The hydrogen bond joins bases together in a DNA molecules. Which is the bond between two strands on a DNA molecule. Although the hydrogen bond is weak, collectively in the DNA molecule, it is a strong bond which binds the molecule together.


Related Questions

help please !!!!!!!!!!!!!!!!!!!!​

Answers

Answer:

B

Explanation:

C: Teacher not being in control while experimenting is like giving students an answer key for a test and telling them not to use it.

D: duh

A female heterozygous for dark hair and freckles married a male also heterozygous for dark hair and freckles. What is the possibility of having offspring with no freckles and light hair?

•8/16
•3/16
•9/16
•1/16

Answers

Answer: I would say 3/16 but then again im not too sure you may want to wait until a second answer arrives :D

Some ___ fungi can be eaten , but there are also some that are harmful to plant life like wheat rust .

A) Zygote forming
B) Sac
C) Imperfect
D) Club
E) Chytrid

right answers only pls

Answers

Club Fungi is the correct answer.

What can consumers do to make sure that more materials are recycled?
А buy products made from recycled materials
00
buy biodegradable plastics
С
use canvas bags when shopping
D
use paper bags instead of plastic bags

Answers

Answer:I feel like some of the answers for me would be A and B but if you only had to choose one I would choose A

Explanation: When you buy recycled you are helping the local economy and the environment. You already know that recycling keeps useful materials from going to waste in landfills or incinerators. But did you know that buying recycled-content products ensures that markets for those recovered materials are strong

Edit: Just figured out it's not B here's why:

Plastics marketed as "biodegradable" will contribute to plastic pollution if they are lost or littered. They do not break down as quickly and completely in the environment as the term might imply and thus can harm wildlife and ecosystems. Sorry if it's long

At the time when the consumers do to make sure that more materials are recycled so here option A is considered i.e. buy products made from recycled materials.

Recycled materials:

At the time when we purchase the recycled so you helped the economy as well as the environment. Also, recycling plays a vital role for minimizing the wastage and make the proper utilization of the product.

Hence, At the time when the consumers do to make sure that more materials are recycled so here option A is considered i.e. buy products made from recycled materials.

Learn more about recycle here: https://brainly.com/question/24112972

Which of the following seems probable in a garden with moist soil, planted with thriving astilbe, bleeding
heart, and hydrangeas, but with boxwood that is doing very poorly?

Answers

Answer:

the garden has a low ph, under 7

Explanation:

took the test

When humans come to a previously pristine environment, they inadvertently bring organisms with them that can be harmful to the local flora and fauna. Such organisms are known as _____.

Answers

Answer:

INVASIVE species

Explanation:

In biology, an organism is said to be INVASIVE if the organism is foreign to a particular region or habitat and possess the unpleasant ability to proliferate or grow rapidly to the point of competing with local species of organisms.

According to this question, humans are said to introduce organisms that have the ability to harm the local flora and fauna. Hence, these organisms are INVASIVE SPECIES because they are foreign to that place and cause damage in their new environment.

The MA of a lever is 4. If you have to lift the object up 20 cm,
how far will you have to pull down?

Answers

Answer:

jayfeather friend me

Explanation:

Answer: The mechanical advantage of a machine is 4. ... Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.

what was known before franklin and wilkins conducted their studies of DNA?

Answers

Answer:

A. DNA is found in the nucleus of a cell

C. Organisms store and transmit genetic information

E. Cells contain protein molecules.

Answer:

A. DNA is found in the nucleus of a cell C. Organisms store and transmit genetic information E. Cells contain protein molecules.

Explanation:

a force has direction and contact true or false

Answers

Answer:

Because a force is a vector that has a direction, it is common to represent forces using diagrams in which a force is represented by an arrow. In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate. ... A force has both magnitude and direction, making it a vector quantity.

Therefore, yes

Large moving cells in the blood and lymph nodes that ingest and digest foreign particles or wall off material are called:

bacteria
fibroblasts
viruses
leukocytes

Answers

Answer:

Leukocytes

Explanation:

Leukocytes = White blood cells that digest foreign particles

r If a mouse population changes color from white to black over many generations, which question should be asked to determine whether the population changes are a result of natural selection or artificial selection?
A.
What do humans need to keep mice healthy as pets?
B.
Was there a change in the genetic traits of the mice?
C.
Were the genes of the mice inherited from their parents?
D.
Was there a change in the environment where the mice live?

Answers

Answer:

D if there is a change in environment that would favor black fur you could assume that natural selection caused the fur to change

Explanation:

The question which should be asked to determine whether the population changes are a result of natural selection or artificial selection is that was there a change in the environment where the mice live? Thus, the correct option is D.


What is Natural selection?

Natural selection is the process through which the populations of different living organisms adapt and change with respect to their surrounding environment. Individuals in a population are naturally variable, it means that they are all different in some way or the other. This variation in the population means that some individuals have traits which are better suited to the surrounding environment than others.

If a mouse population changes its color from white to black over many generations, then the question which should be asked is "Was there a change in the environment where the mice live?"

Therefore, the correct option is D.

Learn more about Natural selection here:

https://brainly.com/question/2725702

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Emma lives in Wisconsin and wants to plant geraniums in her yard. The average daily temperature in her area is 21°C (70°F) and the nighttime temperatures are averaging 18°C (65°F). The area where she would plant the geraniums gets full sun all day. Would you suggest she plant her geraniums? Why or why not?

Answers

Answer:

Please mark brainliest

Explanation:

Yes, because geraniums live on land that has a temperature of 65 degrees F and 70 degrees F.

PLEASE MARK BRAINLIEST

Which choice describes a strategy used to help restore cod populations?

limit the size of fishing fleets and catches

restrict fishing to trawling nets

allow fishermen to harvest from protected areas when necessary

harvest only very young fish

Answers

Answer: Limit the size of fishing fleets and catch size.

Explanation: Cod are nearly extinct therefore we either need to stop catching them or limit the amount you catch

The choice describes a strategy used to help restore cod populations is limiting the size of fishing fleets and catches. The correct option is A.

What are cod populations?

Atlantic cod, a fish that was essential to New England's economy, is being fished at historically low levels, and New England cod appears to be recovering from overfishing after many years.

Many people are concerned about eating fish because the IUCN has recently classified species including cod, haddock, and grouper as endangered. The fish that are linked to high bycatch rates are another worry for divers. Animals like dolphins and turtles are accidentally killed in the nets at this location.

Therefore, the correct option is A. limit the size of fishing fleets and catches.

To learn more about cod populations, visit here:

https://brainly.com/question/17210348

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1) If the amount of algae in the ocean decreases by 50%, the population of its consumers, goby fish, will

A decrease to its carrying capacity.

B go extinct.

C increase by 50%.

D increase to its carrying capacity.

Answers

Answer: decrease to it’s carrying capacity

What is the formula for the stable, binary ionic compound formed between Ba2+ and O2-?
A) BaO2
B) Ba2O2
C) Ba2O
D) BaO

Answers

Answer:

it's ba0 so the answer is d

Please hurry it’s timed

Answers

Answer:

B) Nucleotide

Answer:

Nucleotide

Explanation:

The entire thing is called a nucleotide, the other answers are parts of a nucleotide.

Which product of fermentation expands bread dough
Ethanol
Energy
Carbon dioxide

Answers

Carbon dioxide because During fermentation, carbon dioxide is produced and trapped as tiny pockets of air within the dough. This causes it to rise. During baking the carbon dioxide expands and causes the bread to rise further. The alcohol produced during fermentation evaporates during the bread baking process.

Why are we most concerned about CO2 as opposed to other greenhouse gases?

Answers

Because CO2 puts us at the greatest risk of irreversible changes if it continues to accumulate unabated in the atmosphere

Help
I don’t know what to do here
Number 2 don’t have to answer I just need help for 1!

Answers

Answer:

dominant is the 2 capital letters heterozygous dominant is one capital and one lower case

purple

hairy knuckles normal tails

Explanation:

Which of the following is a compressional/longitudinal wave?
А
water
B
fans doing the "wave" in a football stadium
С
light
D
sound

Answers

Answer:

D. Sound

Explanation:

Both А. water and B. fans doing the "wave" in a football stadium are both literal waves and are not examples of a compressional/longitudinal

Answer:

the answer is sound

Explanation:

a sound wave in longitudinal

the chromatin condenses
into visible chromosomes

Answers

Answer: DNA and proteins contained in the nucleus, known as chromatin, condenses. ... The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. Chromosomes are made of a single piece of DNA that is highly organized.During prophase, chromatin condenses into chromosomes, and the nuclear envelope, or membrane, breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles (sides) of the cell. ... The spindle starts to form during prophase of mitosis

Explanation:

A class is debating the advantages and disadvantages of different types of reproduction. One student argues that organisms that reproduce asexually, like bacteria, have no advantage over organisms that reproduce sexually.
Which of the following choices below represents an argument for the advantages of asexual reproduction?
A. Organisms that reproduce asexually are likely to find a mate at a faster rate than sexually reproducing organisms, which allows them to reproduce faster.
B. Organisms that reproduce asexually are more diverse and are more likely to pass on key genes for survival to future generations, which aids in maintaining beneficial genes for survival in the gene pool
C. Organisms that reproduce asexually gain variation through processes like crossing over, which allows survival in instances of ecological change
D. Organisms that reproduce asexually create a large amount of offspring in a short period of time in order to maintain their population

Answers

Answer:

D

Explanation:

Ya que en todas las definiciones anteriores el contenido que poseen no son acordes a la reproducción asexual , en otras palabras no tiene sentido alguno

Please help!! Due today
Click picture to make bigger thank you :)

Answers

Answer:

B. The mechanism the organism uses to obtain energy

Explanation:

I really focused on the question it aske me

Answer:

C. the way the organism transfers to the offspring

Explanation:

Which gas is removed from the atmosphere during photosynthesis?

A. hydrogen
B. oxygen
C. nitrogen
D. carbon dioxide

Answers

Answer:

D. carbon dioxide 21

Explanation:

A. hydrogen 21!

Answer:

D

Explanation:

plants take carbon dioxide in and release oxygen

A lizard lays an egg for a new baby lizard.

Asexual reproduction

Sexual reproduction

Answers

Asexual reproductive

The picture shows 4 different types of Point Mutations, what type of Point Mutation is letter A?

Answers

Answer:

there is no picture

Answer: no picture attached

Explanation:


I have a test in a couple days and I still don’t know how to do this stuffsomeone teach mee
!(points given)!

Answers

Blue square:
0 0%
2 50%
2 50%

Red square:
2 50%
2 50%



Work:

b b
B Bb Bb
b bb bb

B=Dominant trait
b=Recessive trait

BB=Purple flower
Bb=Purple flower
bb=White flower

If that makes sense.

please help. me there is 8 questions plz

Answers

Answer:

1. c , 2.b, 3.a, 4.a, 5.c, 6.a, 7.c


Oxygen is produced at what point during photosynthesis?
a. when ATP is converted into ADP
b. when CO2 is fixed
c. when water is split
d. when 3-PGA is converted into G3P

Answers

c when water is split

DNA creates ____ which creates ____ which creates _____.

Answers

Answer:

DNA replication creates two new strands that assemble nucleotides differently.

Explanation:

This statement describes DNA replication because this process involves a double stranded DNA copied to produce two identical new DNA molecules.

Hope this helps!

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